With a lifetime warranty against rust and corrosion, the Channel CTR15206 cafeteria tray rack is made of heavy-duty, high tensile extruded type 6063-T5 alloy aluminum. The tray slides are 1” x 1-1/2” extruded aluminum angle heli-arc welded to the frame. The vertical and horizontal frame sections are 1” extruded aluminum tubing. The top is made of solid aluminum. The CTR15206 has 5” non-marking casters. Benefits and Features: Mobile multi-purpose racks for holding, storing, and transporting plastic trays and insulated containers Heavy-duty high tensile extruded aluminum Type 6063-T5 alloy Solid aluminum top Tray slides are 1” x 1-1/2” extruded aluminum angle heli-arc welded to the frame Bottom load ledge design Vertical and horizontal frame sections are 1” extruded aluminum tubing Standard 5” full swivel non-marking plate casters Casters are securely bolted to the frame to facilitate replacements Side load design 5” angle spacing Double section Specifications: Model: CTR15206 Capacity: (20) 15” x 20” trays (2 per level) Warranty: Lifetime against rust and corrosion Dimensions: 54" H x 44" W x 30" D Approximate Weight: 42 lbs. Certifications: Made in USA, NSF